Drilling For Magma
Makarand writes "In an effort to better understand volcanic eruption patterns researchers in
Japan are planning undertake the world's first volcano drilling experiment to get samples of magma
according to this
Japan Times online article.
They plan to drill
1700 meters deep to penetrate a volcanic vent.
The drilling operation will use muddy water as a coolant
which will also help prevent volcanic gas and other substances
from spewing out. They will start in late January
and are expected to extract a sample about 200 meters long and 15 cm in diameter by summer.
Studying such samples is expected to reveal
secrets not possible with studies conducted from above ground and mere observation of rocks around the volcanic vent."
When they dropped the geothermal wells here on the big island almost all of the attempts were met with destroyed drilling rigs - mainly due to excessive heat.
It doesn't make sense that they're going to actually drill into the 2000 degree stuff, unless they have some really really really temperature proof drill bits.
However, it is true that just because the lava is 2000+ degrees (F) that it will not *instantly* melt the cold rock it touches. We can (with special kevlar/spun glass gloves) actually pick up liquid flow - it picks up like taffy and will lift off the cold ground. However, lava in a tube, where it is constantly flowing, does eventually melt the surrounding rock - and can be a cause of lava tubes widening once they're created - but that requries constant contact to liquid magma over time.